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  • Turnaround time:
    10–21 calendar days (14 days on average)
  • Preferred specimen:
    3mL whole blood in a purple-top tube
  • Alternate specimens:
    DNA or saliva/assisted saliva
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GLDC

Alias

GCE; GCSP; HYGN1

Associated disorders

The GLDC gene is associated with autosomal recessive glycine encephalopathy (MedGen UID: 155625).

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GLDC

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Invitae tests that include this gene:

Invitae Epilepsy Panel up to 136 genes

An estimated 70 – 75% of glycine encephalopathy is caused by pathogenic variants identified in GLDC (PMID: 10873393, 16450403).

The GLDC gene encodes the glycine decarboxylase enzyme, a component of the mitochondrial enzyme complex called the glycine cleavage system. This enzyme complex is responsible for the degradation of glycine (PMID: 18941301).

Assay and technical information

Invitae is a College of American Pathologists (CAP)-accredited and Clinical Laboratory Improvement Amendments (CLIA)-certified clinical diagnostic laboratory performing full-gene sequencing and deletion/duplication analysis using next-generation sequencing technology (NGS).

Our sequence analysis covers clinically important regions of each gene, including coding exons, +/- 10 base pairs of adjacent intronic sequence in the transcript listed below. In addition, analysis covers the select non-coding variants specifically defined in the table below. Any variants that fall outside these regions are not analyzed. Any specific limitations in the analysis of these genes are also listed in the table below.

Our analysis detects most intragenic deletions and duplications at single exon resolution. However, in rare situations, single-exon copy number events may not be analyzed due to inherent sequence properties or isolated reduction in data quality. If you are requesting the detection of a specific single-exon copy number variation, please contact Client Services before placing your order.

Gene Transcript reference Sequencing analysis Deletion/Duplication analysis
GLDC NM_000170.2